<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>找回密码</title>
    <script src="js/jquery.1.9.min.js"></script>
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css"
          integrity="sha384-HSMxcRTRxnN+Bdg0JdbxYKrThecOKuH5zCYotlSAcp1+c8xmyTe9GYg1l9a69psu" crossorigin="anonymous">
    <!-- 最新的 Bootstrap 核心 JavaScript 文件 -->
    <script src="https://stackpath.bootstrapcdn.com/bootstrap/3.4.1/js/bootstrap.min.js"
            integrity="sha384-aJ21OjlMXNL5UyIl/XNwTMqvzeRMZH2w8c5cRVpzpU8Y5bApTppSuUkhZXN0VxHd"
            crossorigin="anonymous"></script>
</head>

<script>

    function checkUserName() {
        var flag;
        var userName = $("#userName").val();
        if (userName == null || userName == "null" || userName == "") {
            flag = false;
            $("#error_msg").html("用户名不能为空");
            return;
        } else {
            var reg = /^[0-9a-zA-Z_]{8,}$/;
            if (!reg.test(userName)) {
                flag = false;
                $("#error_msg").html("用户名至少8位字母数字下划线均可");
                return;
            } else {
                flag = true;
            }
        }
        return flag;
    }

    function checkPassWord() {
        var flag = false;
        var password = $("#password").val();
        if (password == null || password == "null" || password == "") {
            flag = false;
            $("#error_msg").html("密码不能为空");
            return;
        } else {
            var reg = /([a-zA-Z0-9!@#$%^&*()_?<>{}]){6,18}/;
            if (!reg.test(password)) {
                flag = false;
                $("#error_msg").html("密码6-18位包含字母数组下划线");
                return;
            } else {
                flag = true;
            }
        }
        return flag;
    }

    function checkTwoPassWord() {
        var flag = false;
        var newpassword = $("#newpassword").val();
        if (newpassword == null || newpassword == "null" || newpassword == "") {
            flag = false;
            $("#error_msg").html("确认密码不能为空");
            return;
        } else {
            var password = $("#password").val();
            if (newpassword !== password) {
                flag = false;
                $("#error_msg").html("两次密码不一致，请检查");
                return;
            } else {
                flag = true;
            }
        }
        return flag;
    }

    function checkEmail() {
        var flag;
        var email = $("#email").val();
        if (email == null || email == "null" || email == "") {
            flag = false;
            $("#error_msg").html("邮箱不能为空");
            return;
        } else {
            var reg = /^[a-z0-9]+([._\\-]*[a-z0-9])*@([a-z0-9]+[-a-z0-9]*[a-z0-9]+.){1,63}[a-z0-9]+$/;
            if (!reg.test(email)) {
                flag = false;
                $("#error_msg").html("您输入的邮箱，不符合规范，请重新输入");
            } else {
                flag = true;
            }
        }
        return flag;
    }

    $(function () {
        $("#update").click(function () {
            if (checkUserName() && checkEmail() && checkPassWord() && checkTwoPassWord()) {
                $.post("/wenote/user?method=forgetPws", $("#forgetPws").serialize(), function (data) {
                    if (data.flag) {
                        alert("设置密码成功");
                        location.href = "login.html"
                    } else {
                        alert(data.errorMsg);
                    }
                });
            }
        });

        $("#userName").blur(checkUserName);
        $("#email").blur(checkEmail);
        $("#password").blur(checkPassWord);
        $("#newpassword").blur(checkTwoPassWord);
    });
</script>

<body>
<div style="width: 400px;margin-left: 36%;margin-top: 10%;background: white;">
    <div id="error_msg" style="color: red; text-align: center;"></div>
    <form id="forgetPws" action="#" method="post">
        <div class="form-group">
            <label for="userName">用户名</label>
            <input type="text" class="form-control" id="userName" name="userName" placeholder="请输入用户名">
        </div>
        <div class="form-group">
            <label for="email">邮箱</label>
            <input type="text" class="form-control" id="email" name="email" placeholder="请输入邮箱">
        </div>
        <div class="form-group">
            <label for="password">新密码</label>
            <input type="password" class="form-control" id="password" name="password" placeholder="请输入密码">
        </div>
        <div class="form-group">
            <label for="newpassword">确认密码</label>
            <input type="password" class="form-control" id="newpassword" placeholder="请输入密码">
        </div>
        <button id="update" type="button" class="btn btn-primary">提交</button>
        <a href="login.html" class="btn btn-default">返回</a>
    </form>
</div>
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</body>
</html>